Configuring Audio Features
283
G726-40, iLBC, G723_53,
G723_63
G722, PCMA, PCMU, G729,
G726-16, G726-24, G726-32,
G726-40, iLBC
The following table summarizes the supported audio codecs on Skype for Business phones:
Packetization Time
Ptime (Packetization Time) is a measurement of the duration (in milliseconds) of the audio data
in each RTP packet sent to the destination, and defines how much network bandwidth is used
for the RTP stream transfer. Before establishing a conversation, codec and ptime are negotiated
through SIP signaling. The valid values of ptime range from 10 to 60, in increments of 10
milliseconds. The default ptime is 20ms. You can also disable the ptime negotiation.
Codecs and priorities of these codecs are configurable on a per-line basis. The attribute “rtpmap”
is used to define a mapping from RTP payload codes to a codec, clock rate and other encoding
parameters.
The corresponding attributes of the codec are listed as follows:
Configuration Files
Web User Interface
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